Total Inorganic Nitrate (Particulate Nitrate and Nitric Acid) Observations in Calgary, Alberta

Peake, E.; MacLean, M. A.; Sandhu, Harpinder

doi:10.1080/00022470.1985.10465909

Cited by 9 publications

(2 citation statements)

References 7 publications

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“…In contrast, our values are far below rural (i.e., non-urban areas without local point sources) levels reported for eastern North America (e.g., 2.2-5.9 ug/m 3 , see Daum et al 1989, for rural Ontario;Wolff andKorsog 1989, for rural Massachusetts, andLewin et al 1986 for rural Pennsylvania). However, our particulate nitrate (Figure 2) levels were lower than other published values (e.g., 0.24 ug/m 3 in Peake et al 1985 vs. 1.0 ug/m 3 in Daum et al 1989). Wiersma étal.…”

Section: Data Variabilitycontrasting

confidence: 83%

“…The average concentration over the 29 month sampling period, for nitrates and nitric acid (n = 94), respectively, was 0.13 and 0.60 ug/m 3 . In general, our nitric acid concentrations ( Figure 3) were slightly higher than at other remote sites: 0.24 ug/m 3 (Alberta, Peake et al 1985); 0.13 ug/m 3 (Nova Scotia, Smith-Palmer and Wentzell 1987); and 0.51 ug/m 3 (Whiteface Mountain "clean air", New York, Kelly et al 1984). In contrast, our values are far below rural (i.e., non-urban areas without local point sources) levels reported for eastern North America (e.g., 2.2-5.9 ug/m 3 , see Daum et al 1989, for rural Ontario;Wolff andKorsog 1989, for rural Massachusetts, andLewin et al 1986 for rural Pennsylvania).…”

Section: Data Variabilitymentioning

confidence: 73%

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Testing and application of ecosystem monitoring parameters

Bruns

Wiersma

White

1997

Toxicological & Environmental Chemistry

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Our research has focused on the design, testing, and application of integrated monitoring programs from a multimedia (air, water, soil, biota) systems approach at several types of study sites. The goals of this paper are: 1) to evaluate selected atmospheric, terrestrial, and aquatic parameters at a high-elevation site in Wyoming (USA), and 2) to illustrate the use of two of these parameters in the appraisal of aquatic ecosystem health at a biosphere reserve (People's Republic of China) and in the design of a landscape-scale (over 6500 hectares) study of ecosystem impacts in Pennsylvania (USA). At the Wyoming site, five evaluation criteria were used to assess monitoring parameters: ecosystem conceptual framework, data variability, uncertainty, usability of methods, and cost-effectiveness. Atmospheric concentrations of nitrates and nitric acid, and stream pH scored lowest overall because of high data variability, high uncertainty, and low cost-effectiveness. Tropospheric ozone was ranked intermediate on most criteria but had high costs of equipment and operation. Metals in vegetation (mosses), aquatic macroinvertebrates, and stream alkalinity scored highest; these parameters each reflected an ecosystem conceptual framework (and scored high as indicators of ecosystem health), and they were intermediate in cost-effectiveness. When we applied selected aquatic parameters at another site (China) within a drainage basin perspective, alkalinity and lotic macroinvertebrates indicated that a small river draining a Biosphere Reserve is potentially sensitive to acid deposition but rapid field assessments have not indicated any ecological damage based on limited sampling. These results from Wyoming and China show that alkalinity and macroinvertebrates should prove useful in landscape and watershed studies (Pennsylvania) of acidic (mining) impacts based on the tools of remote sensing, geographic information systems (GIS), and the global positioning system (GPS).

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Section: Data Variabilitycontrasting

confidence: 83%

Section: Data Variabilitymentioning

confidence: 73%

Testing and application of ecosystem monitoring parameters

Bruns

Wiersma

White

1997

Toxicological & Environmental Chemistry

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Peroxyacyl Nitrates (PANs): Their Physical and Chemical Properties

Gaffney

Marley

Prestbo

1989

The Handbook of Environmental Chemistry

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Ecosystem monitoring at global baseline sites

Bruns

Wiersma

Rykiel

1991

Environmental Monitoring and Assessment

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Integrated ecosystem and pollutant monitoring is being conducted at prototype global baseline sites in remote areas of the Noatak National Preserve, Alaska, the Wind River Mountains, Wyoming, and Torres del Paine National Park, Chile. A systems approach has been used in the design of these projects. This approach includes: (1) evaluation of source-receptor relationships, (2) multimedia (i.e., air, water, soil, biota) monitoring of key contaminant pathways within the environment, (3) the use of selected ecosystem parameters to detect anthropogenic influence, and (4) the application of a systems conceptual framework as a heuristic tool.Initial short-term studies of air quality (e.g. SO2, NO2) plus trace metal concentrations in mosses generally indicate pristine conditions at all three of the above sites as expected although trace metals in mosses were higher at the Wyoming site. Selected ecosystem parameters for both terrestrial (e.g. litter decomposition) and aquatic (e.g. shredders, a macroinvertebrate functional feeding group) habitats at the Wyoming site reflected baseline conditions when compared to other studies.Plans also are being made to use U.S. Department of Energy Research Parks for global change monitoring. This will involve cross-site analyses of existing ecological databases and the design of a future monitoring network based on a systems approach as outlined in this paper.

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Total Inorganic Nitrate (Particulate Nitrate and Nitric Acid) Observations in Calgary, Alberta

Cited by 9 publications

References 7 publications

Testing and application of ecosystem monitoring parameters

Testing and application of ecosystem monitoring parameters

Peroxyacyl Nitrates (PANs): Their Physical and Chemical Properties

Ecosystem monitoring at global baseline sites

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